Subtract 21/80 from 5/25
5/25 - 21/80 is -1/16.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 80 is 400
Next, find the equivalent fraction of both fractional numbers with denominator 400 - For the 1st fraction, since 25 × 16 = 400,
5/25 = 5 × 16/25 × 16 = 80/400 - Likewise, for the 2nd fraction, since 80 × 5 = 400,
21/80 = 21 × 5/80 × 5 = 105/400 - Subtract the two like fractions:
80/400 - 105/400 = 80 - 105/400 = -25/400 - After reducing the fraction, the answer is -1/16
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